CN210176912U - Marine diesel engine crankshaft quenching device - Google Patents
Marine diesel engine crankshaft quenching device Download PDFInfo
- Publication number
- CN210176912U CN210176912U CN201920797062.8U CN201920797062U CN210176912U CN 210176912 U CN210176912 U CN 210176912U CN 201920797062 U CN201920797062 U CN 201920797062U CN 210176912 U CN210176912 U CN 210176912U
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- water
- tank
- receiving tank
- diesel engine
- column
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- 238000010791 quenching Methods 0.000 title claims abstract description 41
- 230000000171 quenching effect Effects 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 148
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 abstract description 32
- 239000007921 spray Substances 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007669 thermal treatment Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910001563 bainite Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
The utility model relates to a quenching device for a marine diesel engine crankshaft, which belongs to the heat treatment technology of engine parts and comprises a quenching bath and a spraying column; the quenching tank comprises a tank body, a water receiving tank is arranged in the tank body, the bottom of the water receiving tank is fixedly provided with a supporting plate, a closed water storage tank is arranged in the tank body below the water receiving tank, and the water storage tank and the water receiving tank are connected with a liquid feeding opening and a water leakage opening on the side edge of the tank body through pipelines; a water pump is arranged in the tank body and is connected with the water storage tank through a water pumping pipe; the spraying columns are arranged above the water receiving tank and comprise columns which are fixedly connected to the left side and the right side of the tank body through supporting columns; a water injection channel is axially arranged in the column body and is connected with a water pump through a water guide pipe; the spraying column is provided with a plurality of spray heads communicated with the water injection channel towards the water receiving tank. The utility model discloses be favorable to marine diesel engine bent axle batch thermal treatment, cooling water high-usage, still have simple structure, low cost's advantage.
Description
Technical Field
The utility model relates to a heat treatment technology for engine parts, in particular to a quenching device for a marine diesel engine crankshaft.
Background
Quenching is a heat treatment process in which the steel is heated to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel), is kept warm for a certain period of time, is fully or partially austenitized, and is then rapidly cooled to a temperature below Ms (or near Ms) at a cooling rate greater than the critical cooling rate to perform martensite (or bainite) transformation.
A common quenching apparatus is usually a bath containing cooling water for placing a heated workpiece therein for quenching. Although the quenching equipment is low in cost, the workpiece is directly put into the cooling water, so that the cooling water is gradually heated after being cooled for several times, and the quenching equipment is not favorable for batch heat treatment. And once the cooling water is heated, the cooling water needs to be discharged and injected again, so that the utilization rate of the cooling water is low. The modern cooling equipment has the defects of complex structure and high cost.
Disclosure of Invention
The utility model aims to solve the technical problem that the not enough of prior art provides a marine diesel engine bent axle guenching unit that is favorable to batch thermal treatment, cooling water high-usage, still has simple structure, low cost's advantage.
The utility model discloses the technical problem that solve is realized through following technical scheme: the utility model relates to a marine diesel engine bent axle guenching unit, its characteristics are: comprises a quenching bath and a spraying column;
the quenching tank comprises a tank body, a water receiving tank is arranged in the tank body, and at least two supporting plates for supporting the engine crankshaft supporting seat are fixedly arranged at the bottom of the water receiving tank;
a closed water storage tank and a water pump tank are arranged in the tank body below the water receiving tank, and a liquid feeding port and a water leakage port are arranged on the side edge of the tank body; the water storage tank is connected with a liquid feeding port through a liquid feeding pipeline, and the bottom of the water receiving tank is connected with a water leakage port through a water leakage pipeline; a water pump is arranged in the water pump tank, the water inlet end of the water pump is connected with the water storage tank through a water pumping pipe, and the water outlet end of the water pump is connected with a water guide pipe and extends out of the tank body;
the spraying column is arranged above the water receiving tank and comprises a column body, and two ends of the column body are fixedly connected to the left side and the right side of the tank body through supporting columns; a water injection channel is axially arranged in the column body, one end of the water injection channel is sealed, and the other end of the water injection channel is connected with one end of the water guide pipe, which is far away from the water pump; the spraying column is provided with a plurality of nozzles towards the direction of the water receiving tank, and the nozzles are communicated with the water injection channel.
The marine diesel engine crankshaft quenching device further preferably adopts the technical scheme that: the support column is of a telescopic structure.
The marine diesel engine crankshaft quenching device further preferably adopts the technical scheme that: and a filter screen is arranged at the communication part of the bottom of the water receiving tank and the water leakage channel.
The marine diesel engine crankshaft quenching device further preferably adopts the technical scheme that: the two ends of the column body are provided with interface grooves communicated with the water injection channel, one interface groove is internally provided with a sealing plug, and the other interface groove is connected with one end of the water guide pipe far away from the water pump.
The marine diesel engine crankshaft quenching device further preferably adopts the technical scheme that: and the filling opening and the water leakage opening are provided with sealing covers.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model carries out quenching treatment by supporting the crankshaft above the water receiving tank and spraying cooling water, thereby avoiding the situation that the cooling water becomes hot after being cooled for several times, and being beneficial to the batch heat treatment of the crankshaft of the marine diesel engine; the quenched cooling water falls into the water receiving tank and flows out of the quenching tank for treatment, so that the cooling water is recycled, and the utilization rate of the cooling water is high; the device is integrally formed by only the quenching bath and the spraying columns, and has the advantages of simple structure, good integrity and lower manufacturing cost.
(2) The utility model discloses a further preferred technical scheme establishes the support column into the telescopic structure, makes the shower nozzle spray cooling water more evenly, improves the cooling effect.
(3) The utility model discloses a further preferred technical scheme, at the bottom installation filter screen of water receiving tank, can filter the cooling water after quenching, shorten cooling water treatment time effectively.
(4) The utility model discloses a further preferred technical scheme, set up the interface groove with the water injection passageway intercommunication at the both ends of cylinder, the clearance and the maintenance of the water injection passageway of being convenient for.
Drawings
FIG. 1 is a longitudinal sectional view of the present invention and an installation diagram of the engine crankshaft support base and the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic diagram of a crankshaft support block of the engine.
In the figure: the device comprises a quenching tank, 2 spraying columns, 3 a tank body, 4 a water receiving tank, 5 supporting plates, 6 a water storage tank, 7 a water pump tank, 8 a liquid filling opening, 9 a water leakage opening, 10 a water leakage pipeline, 11 a water pump, 12 a water guide pipe, 13 a column body, 14 a supporting column, 15 a water injection channel, 16 a spray head, 17 a filter screen, 18 an interface tank, 19 a sealing plug, 20 a sealing cover, 21 a water suction pipe, 22 an engine crankshaft supporting seat, 23 a marine diesel engine crankshaft, 24 a base, 25 a support and 26 an arc groove.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided in conjunction with the accompanying drawings to facilitate further understanding of the present invention by those skilled in the art, and should not be construed as limiting the scope of the present invention.
Example 1: referring to fig. 1 to 3, the quenching device for the marine diesel engine crankshaft comprises a quenching bath 1 and a spraying column 2; the quenching tank 1 comprises a tank body 3, a water receiving tank 4 is arranged in the tank body 3, and three supporting plates 5 for supporting an engine crankshaft supporting seat 22 are fixedly arranged at the bottom of the water receiving tank 4; a closed water storage tank 6 and a water pump tank 7 are arranged in the tank body 3 below the water receiving tank 4, and a liquid feeding port 8 and a water leakage port 9 are arranged on the side edge of the tank body 3; the water storage tank 6 is connected with a liquid feeding port 8 through a liquid feeding pipeline, and the bottom of the water receiving tank 4 is connected with a water leakage port 9 through a water leakage pipeline 10; a water pump 11 is arranged in the water pump tank 7, the water inlet end of the water pump 11 is connected with the water storage tank 6 through a water pumping pipe 21, and the water outlet end of the water pump 11 is connected with a water guide pipe 12 and extends out of the tank body 3; the spraying column 2 is arranged above the water receiving tank 4, the spraying column 2 comprises a column body 13, and two ends of the column body 13 are fixedly connected to the left side and the right side of the tank body 3 through support columns 14; a water injection channel 15 is axially arranged in the column body 13, one end of the water injection channel 15 is sealed, and the other end of the water injection channel 15 is connected with one end of the water guide pipe 12 far away from the water pump 11; fourteen spray heads 16 are arranged on the spraying column 2 towards the water receiving tank 4, and the spray heads 16 are communicated with the water injection channel 15.
The engine crankshaft support seat 22 is composed of a base 24 and five supports 25 fixed on the base 24, a marine diesel engine crankshaft 23 is installed on the engine crankshaft support seat 22 through matching with an arc groove 26 on the supports 25, and a groove matched with the support plate 5 is formed in the bottom of the base 24.
The working process of the marine diesel engine crankshaft quenching device is as follows: a crankshaft 23 of the marine diesel engine heated to a suitable temperature is placed on the support plate 5 through the engine crankshaft support block 22. The water pump 11 is started to pump out the cooling water in the water storage tank 6 and send the cooling water into the water filling channel 15 of the spraying column 2 through the water guide pipe 12. The water injection passage 15 distributes cooling water into each spray head 16, and the cooling water is sprayed to the crankshaft below by the spray heads 16 for rapid cooling so as to realize quenching treatment. Meanwhile, the fire tongs are used for overturning the crankshaft to cool the whole circumferential surface of the crankshaft, so that the cooling speed is improved. The cooling water after quenching becomes hot and also contains waste slag due to impact on the crankshaft. The quenched cooling water flows into the water receiving tank 4 for centralized receiving, and then flows out of the quenching tank 1 through the water leakage pipeline 10 and the water leakage port 9. Water containers such as a water bucket and the like are placed below the water leakage port 9 and used for collecting cooling water flowing out of the quenching bath 1, so that the cooling water can be cooled, and waste residues in the cooling water can be precipitated. After a period of cooling and precipitation, cooling water is injected into the water storage tank 6 from the liquid adding port 8 through the liquid adding pipeline to supplement the cooling water.
Example 2: referring to fig. 2, in the quenching apparatus for a crankshaft of a marine diesel engine according to embodiment 1, the supporting pillar 14 has a retractable structure.
The support column 14 is designed to be retractable (e.g., a telescopic column) to adjust the spray column 2 to a suitable height so that the spray head 16 sprays the cooling water more uniformly onto the crankshaft.
Example 3: referring to fig. 1, in the quenching device for the crankshaft of the marine diesel engine according to embodiment 1, a filter screen 17 is installed at a communication position between the bottom of the water receiving tank 4 and the water leakage pipeline 10.
The filter screen 17 is used for filtering the waste slag when the cooling water is discharged out of the water receiving tank 4, and does not need to spend a large amount of time to precipitate the cooling water flowing out of the quenching bath 1.
Example 4: referring to fig. 1, in the quenching device for the crankshaft of the marine diesel engine according to embodiment 1, the two ends of the column 13 are provided with the joint grooves 18 communicated with the water injection channel 15, one joint groove 18 is internally provided with the sealing plug 19, and the other joint groove 18 is connected with one end of the water guide pipe 12 far away from the water pump 11.
The sealing plug 19 is used for sealing the cooling water in the water injection channel 15 and preventing the cooling water from flowing out of the water injection channel 15; the mouthpiece groove 18 at the other end facilitates the connection of the water introduction duct 12 with the water filling passage 15.
When the water filling channel 15 needs to be cleaned and maintained, the sealing plug 19 at one end of the column 13 and the water guide pipe 12 at the other end are detached.
Example 5: referring to fig. 2, in the quenching apparatus for a marine diesel engine crankshaft according to embodiment 1, the filling opening 8 and the water leaking opening 9 are provided with the sealing caps 20.
Claims (5)
1. A marine diesel engine crankshaft guenching unit which characterized in that: comprises a quenching bath and a spraying column;
the quenching tank comprises a tank body, a water receiving tank is arranged in the tank body, and at least two supporting plates for supporting the engine crankshaft supporting seat are fixedly arranged at the bottom of the water receiving tank;
a closed water storage tank and a water pump tank are arranged in the tank body below the water receiving tank, and a liquid feeding port and a water leakage port are arranged on the side edge of the tank body; the water storage tank is connected with a liquid feeding port through a liquid feeding pipeline, and the bottom of the water receiving tank is connected with a water leakage port through a water leakage pipeline; a water pump is arranged in the water pump tank, the water inlet end of the water pump is connected with the water storage tank through a water pumping pipe, and the water outlet end of the water pump is connected with a water guide pipe and extends out of the tank body;
the spraying column is arranged above the water receiving tank and comprises a column body, and two ends of the column body are fixedly connected to the left side and the right side of the tank body through supporting columns; a water injection channel is axially arranged in the column body, one end of the water injection channel is sealed, and the other end of the water injection channel is connected with one end of the water guide pipe, which is far away from the water pump; the spraying column is provided with a plurality of nozzles towards the direction of the water receiving tank, and the nozzles are communicated with the water injection channel.
2. The marine diesel engine crankshaft quenching device according to claim 1, wherein: the support column is of a telescopic structure.
3. The marine diesel engine crankshaft quenching device according to claim 1, wherein: and a filter screen is arranged at the communication part of the bottom of the water receiving tank and the water leakage channel.
4. The marine diesel engine crankshaft quenching device according to claim 1, wherein: the two ends of the column body are provided with interface grooves communicated with the water injection channel, one interface groove is internally provided with a sealing plug, and the other interface groove is connected with one end of the water guide pipe far away from the water pump.
5. The marine diesel engine crankshaft quenching device according to claim 1, wherein: and the filling opening and the water leakage opening are provided with sealing covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920797062.8U CN210176912U (en) | 2019-05-30 | 2019-05-30 | Marine diesel engine crankshaft quenching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920797062.8U CN210176912U (en) | 2019-05-30 | 2019-05-30 | Marine diesel engine crankshaft quenching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210176912U true CN210176912U (en) | 2020-03-24 |
Family
ID=69835667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920797062.8U Active CN210176912U (en) | 2019-05-30 | 2019-05-30 | Marine diesel engine crankshaft quenching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210176912U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111944984A (en) * | 2020-08-22 | 2020-11-17 | 张涛 | Heat treatment method for surface of engine crankshaft |
| CN112011679A (en) * | 2020-08-31 | 2020-12-01 | 杭州捷高机电科技有限公司 | Quenching treatment equipment and quenching treatment process for engine crankshaft |
| CN112458268A (en) * | 2020-12-10 | 2021-03-09 | 芜湖金宇紧固件有限公司 | Automatic heat treatment production line for screws |
-
2019
- 2019-05-30 CN CN201920797062.8U patent/CN210176912U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111944984A (en) * | 2020-08-22 | 2020-11-17 | 张涛 | Heat treatment method for surface of engine crankshaft |
| CN111944984B (en) * | 2020-08-22 | 2021-07-20 | 河北福昊机械制造有限公司 | Heat treatment method for surface of engine crankshaft |
| CN112011679A (en) * | 2020-08-31 | 2020-12-01 | 杭州捷高机电科技有限公司 | Quenching treatment equipment and quenching treatment process for engine crankshaft |
| CN112011679B (en) * | 2020-08-31 | 2021-04-06 | 天津爱信热处理有限公司 | Quenching treatment equipment and quenching treatment process for engine crankshaft |
| CN112458268A (en) * | 2020-12-10 | 2021-03-09 | 芜湖金宇紧固件有限公司 | Automatic heat treatment production line for screws |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 222000 No.42, Hailian East Road, Haizhou District, Lianyungang City, Jiangsu Province Patentee after: China Shipbuilding Digital Information Technology Co.,Ltd. Address before: 222000 No.42, Hailian East Road, Haizhou District, Lianyungang City, Jiangsu Province Patentee before: CSIC Information Technology Co.,Ltd. |